CVE-2023-28828

highpriority · track · 0EPSS 0.006 · 48 %ileDEEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.59% (48th) EPSS
CVSS 7.5 · high
Is it mine?
5 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · cisa_csaf_ot · nvd

EPSS · scored 2026-10-28

A vulnerability has been identified in Polarion ALM (All versions < V22R2). The application contains a XML External Entity Injection (XXE) vulnerability. This could allow an attacker to view files on the application server filesystem.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • FixedPolarion ALMsiemens_psirt

    Update to V22R2 or later version

    https://support.sw.siemens.com/
  • FixedPolarion ALMcisa_csaf_ot

    Update to V22R2 or later version

    https://support.sw.siemens.com/
  • MitigationPolarion ALMsiemens_psirt

    Set the below configurations to mitigate against external entity injection in OpenSAML 4.x parser configuration. This will be included by default on Polarion V2304 and later versions. parserPool.setMaxPoolSize(100); parserPool.setCoalescing(true); parserPool.setIgnoreComments(true); parserPool.setIgnoreElementContentWhitespace(true); parserPool.setNamespaceAware(true); parserPool.setExpandEntityReferences(false); parserPool.setXincludeAware(false); final Map&lt;String, Boolean&gt; features = new HashMap&lt;String, Boolean&gt;(); features.put(http://xml.org/sax/features/external-general-entities, Boolean.FALSE); features.put(http://xml.org/sax/features/external-parameter-entities, Boolean.FALSE); features.put(http://apache.org/xml/features/disallow-doctype-decl, Boolean.TRUE); features.put(http://apache.org/xml/features/validation/schema/normalized-value, Boolean.FALSE); features.put(http://javax.xml.XMLConstants/feature/secure-processing, Boolean.TRUE); parserPool.setBuilderFeatures(features);

  • MitigationPolarion ALMcisa_csaf_ot

    Set the below configurations to mitigate against external entity injection in OpenSAML 4.x parser configuration. This will be included by default on Polarion V2304 and later versions. parserPool.setMaxPoolSize(100); parserPool.setCoalescing(true); parserPool.setIgnoreComments(true); parserPool.setIgnoreElementContentWhitespace(true); parserPool.setNamespaceAware(true); parserPool.setExpandEntityReferences(false); parserPool.setXincludeAware(false); final Map&lt;String, Boolean&gt; features = new HashMap&lt;String, Boolean&gt;(); features.put(http://xml.org/sax/features/external-general-entities, Boolean.FALSE); features.put(http://xml.org/sax/features/external-parameter-entities, Boolean.FALSE); features.put(http://apache.org/xml/features/disallow-doctype-decl, Boolean.TRUE); features.put(http://apache.org/xml/features/validation/schema/normalized-value, Boolean.FALSE); features.put(http://javax.xml.XMLConstants/feature/secure-processing, Boolean.TRUE); parserPool.setBuilderFeatures(features);

02

cvss

Technical severity, 0–10. One row per scoring source.

7.5
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.9–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · NVD / NIST USexploitability 3.9 · impact 3.6
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:Csecondary · CISA US
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:Csecondary · ENISA EU
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · productcert@siemens.com DEexploitability 2.2 · impact 3.6
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-611USCWE-611USCWE-611US
05

affected products (5)

Products and version ranges known to be affected.

06

advisories (2)

Vendor and ecosystem advisories describing this.

  • SSA-632164SSA-632164: External Entity Injection Vulnerability in Polarion ALM2023-04-11csaf · siemens_psirtDE

    Polarion ALM is vulnerable to XML External Entity (XXE) injection attack that could allow an attacker to potentially disclose confidential data. Siemens has released an update for Polarion ALM and recommends to update to the latest version.

  • ICSA-23-103-12Siemens Polarion ALM2023-04-11icsa · cisa_csaf_otUS

    Polarion ALM is vulnerable to XML External Entity (XXE) injection attack that could allow an attacker to potentially disclose confidential data. Siemens has released an update for Polarion ALM and recommends to update to the latest version.

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcisa_csaf_otnvdsiemens_psirtNVDCVE.orgMITRE
published 2023-04-11modified 2026-10-23
09

references (5)

External citations — patches, advisories, analysis.

scry

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